lets' wait and see then add wise contributions instead of speculations
I agree one hundred percent, that is why I posted this;
Something to think about anyway and I'm not saying that is the cause of this accident.
Never the less, by studying past similar accidents we can sometimes solve new accidents if there are similar patterns/events. I know, been to the school, read the books, watched the films, took the tests and passed them.
If I was assigned to this accident, the rudder issue would be one of the first things looked at, if for no other reason than to dismiss it as a cause as soon as possible.
I'm sure we will hear the probable cause sooner or later, hopefully.